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Title: Unusual interlayer quantum transport behavior caused by the zeroth Landau level in YbMnBi2

Abstract

Relativistic fermions in topological quantum materials are characterized by linear energy–momentum dispersion near band crossing points. Under magnetic fields, relativistic fermions acquire Berry phase of π in cyclotron motion, leading to a zeroth Landau level (LL) at the crossing point, a signature unique to relativistic fermions. Here we report the unusual interlayer quantum transport behavior resulting from the zeroth LL mode observed in the time reversal symmetry breaking type II Weyl semimetal YbMnBi2. The interlayer magnetoresistivity and Hall conductivity of this material are found to exhibit surprising angular dependences under high fields, which can be well fitted by a model, which considers the interlayer quantum tunneling transport of the zeroth LL's Weyl fermions. Our results shed light on the unusual role of zeroth LLl mode in transport.

Authors:
 [1]; ORCiD logo [1];  [2];  [3];  [3];  [4];  [5];  [6];  [5];  [6];  [7];  [3];  [1]
  1. Tulane Univ., New Orleans, LA (United States)
  2. Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
  3. Michigan State Univ., East Lansing, MI (United States). Dept. of Physics and Astronomy
  4. University of California, Riverside CA (United States)
  5. The Ohio State Univ., Columbus, OH (United States)
  6. University of New Orleans (United States)
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division
Publication Date:
Research Org.:
Louisiana State Univ., Baton Rouge, LA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; National Science Foundation (NSF)
OSTI Identifier:
1602030
Grant/Contract Number:  
SC0012432; SC0010597; DMR-1206267
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Electronic properties and materials; Topological matter

Citation Formats

Liu, J. Y., Hu, J., Graf, D., Zou, T., Zhu, M., Shi, Y., Che, S., Radmanesh, S. M. A., Lau, C. N., Spinu, L., Cao, H. B., Ke, X., and Mao, Z. Q. Unusual interlayer quantum transport behavior caused by the zeroth Landau level in YbMnBi2. United States: N. p., 2017. Web. doi:10.1038/s41467-017-00673-7.
Liu, J. Y., Hu, J., Graf, D., Zou, T., Zhu, M., Shi, Y., Che, S., Radmanesh, S. M. A., Lau, C. N., Spinu, L., Cao, H. B., Ke, X., & Mao, Z. Q. Unusual interlayer quantum transport behavior caused by the zeroth Landau level in YbMnBi2. United States. https://doi.org/10.1038/s41467-017-00673-7
Liu, J. Y., Hu, J., Graf, D., Zou, T., Zhu, M., Shi, Y., Che, S., Radmanesh, S. M. A., Lau, C. N., Spinu, L., Cao, H. B., Ke, X., and Mao, Z. Q. Thu . "Unusual interlayer quantum transport behavior caused by the zeroth Landau level in YbMnBi2". United States. https://doi.org/10.1038/s41467-017-00673-7. https://www.osti.gov/servlets/purl/1602030.
@article{osti_1602030,
title = {Unusual interlayer quantum transport behavior caused by the zeroth Landau level in YbMnBi2},
author = {Liu, J. Y. and Hu, J. and Graf, D. and Zou, T. and Zhu, M. and Shi, Y. and Che, S. and Radmanesh, S. M. A. and Lau, C. N. and Spinu, L. and Cao, H. B. and Ke, X. and Mao, Z. Q.},
abstractNote = {Relativistic fermions in topological quantum materials are characterized by linear energy–momentum dispersion near band crossing points. Under magnetic fields, relativistic fermions acquire Berry phase of π in cyclotron motion, leading to a zeroth Landau level (LL) at the crossing point, a signature unique to relativistic fermions. Here we report the unusual interlayer quantum transport behavior resulting from the zeroth LL mode observed in the time reversal symmetry breaking type II Weyl semimetal YbMnBi2. The interlayer magnetoresistivity and Hall conductivity of this material are found to exhibit surprising angular dependences under high fields, which can be well fitted by a model, which considers the interlayer quantum tunneling transport of the zeroth LL's Weyl fermions. Our results shed light on the unusual role of zeroth LLl mode in transport.},
doi = {10.1038/s41467-017-00673-7},
journal = {Nature Communications},
number = 1,
volume = 8,
place = {United States},
year = {Thu Sep 21 00:00:00 EDT 2017},
month = {Thu Sep 21 00:00:00 EDT 2017}
}

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